All there is new to this game is costumes, a little change in the venues but their still named the same and the songs of course.
If your wondering, is it worth the price? I say yes and no.
It really depends if you like the song list. I really did like the song list, some songs in there I didn`t know what they were until I played them and said "Hey! I know this song".
The venues are the same, menu is the same, except they changed it a bit with new weird drawings and colors, loading screens mostly say the same thing as guitar hero 2.
Anyways to say it in little words, they took guitar hero 2 and changed it, thats it.
If you liked playing with hyper speed, its still available Y,B,O,O,B,Y,Y,O.
The price is really high for what we can call, an expansion.
All I can say, if you like the song list a lot buy it or else don`t, you`ll probably get really disappointed.
One more thing is the difficulty, for me expert was really easy compared to GH2 songs. In my FIRST try, I swear, I nailed 5 stars for all, except for the last one, "Play with me" from Extreme. I`m not trying to say "Hey, look at me, I`m so good". All I`m trying to say is that for expert players or even medium, hard players, they will find this game really easy.
Plus when you play the bass with your friend, you get bored on most songs because its so repetitive and easy.
I must say though, some songs on the guitar are really, really fun to play, maybe not hard but fun!
Wratch Child from Iron Maiden is awesome, Also the song from Scorpions is awesome, Holy Diver too. Anyways you get the point.
If you like the song list, BUY IT, if your not sure, rent it. If you don`t like the song list at all or don`t know ANY songs, don`t even bother with the game.